baber/WOPTO huggingface dataset:
Patent GB-1141022-A (GB)
Title: Electrochemical machining
Inventor: DICKSON ERIC WINSTON
IPC: B23H3/02
Filed: 1965-05-04
Abstract: 1,141,022. Electrolytic machining. ASSOCIATED ENG. Ltd. May 4, 1966 [May 4, 1965], No. 18834/65. Heading C7B. Electro-chemical machining is carried out wherein the voltage Vo applied from a stabilized power supply 3 between the tool 1 forming a cathode and the workpiece 2 forming an anode is controlled by a signal dependent on the conductivity of the electrolyte E caused to flow at constant rate through a gap G between the tool and workpiece so maintaining throughout machining a constant equilibrium working gap as the tool advance rate is kept constant during removal of workpiece material. The voltage Vo may be controlled by an error signal Ve derived from a comparison circuit 12 fed with the voltage Vo of the power supply 3 and with a control voltage itself derived from two other comparison circuits 10, 8 each fed with reference voltages Vr, Vcr and signals Vc dependent upon and proportional to the conductivity which may be measured by two coupled coils 5a, b immersed in the electrolyte circuit 4. If the electrolyte composition is assumed unchanged, the signal may be obtained by measuring the electrolyte temperature using a temperature sensitive element (21, Fig. 5). The stabilized power supply may comprise a motor driven variable transformer (14, Fig. 2) or a saturable reactor (17, Fig. 3) and a rectifier (15,18, Figs.2 and 3), or a silicon controlled rectifier circuit (20, Fig. 4), each controlled by the signal.
Patent GB-440349-A (GB)
Title: Improvements relating to rotary kilns for burning cement or similar materials
IPC: F27B7/20
Filed: 1934-06-26
Abstract: 440,349. Rotary cement &c. kilns. JORGENSEN, M. VOGEL-, 24, Bulowsvej, Frederiksberg, near Copenhagen. June 26, 1934, No. 18853. [Class 51 (ii)] In a rotary kiln for burning cement &c. in the form of slurry and having a screen of drying chains at its widened upper end, the diameter of the screen is greater than its thickness in the axial direction of the kiln and the chains, while movable, are in contact with one another at a large number of points and present only such openings for the passage of the gases and the slurry as are formed by the gaps resulting from the irregular shape of the chains. The slurry is fed by a sprayer &c. which distributes it over the surfaces of the chains facing the inlet end of the kiln. The dried slurry is delivered into the burning zone by scoops 5. Disclaiming reference is made to Specification 373,409.
Patent GB-621803-A (GB)
Title: Radio receiving system
IPC: H04B7/10
Filed: 1946-06-24
Abstract: 621,803. Frequency modulation; preventing interference. STANDARD TELEPHONES & CABLES, Ltd. June 24, 1946, No. 18853. Convention date, July 21, 1945. [Class 40 (v)] Heterodyne interference due to signals arriving over different transmission paths in F.M. reception is prevented by using spaced antennµ 1, 6, a phase adjuster 5 between one of the antennµ and the receiver and a beat indicator 10 connected ahead of the amplitude limiter stage. The phase adjuster 5 is adjusted so that the signal reaching the antennµ over the desired transmission path are applied in phase to the receiver, the undesired signals then balancing out partially due to phase difference, this being indicated by minimum amplitude variations on the indicator. The antennµ may be of rhombic type and in series or parallel. Different communication channels may thus be achieved.
Patent GB-274512-A (GB)
Title: An improved signalling device for automobile and other vehicles
IPC: B60Q1/34
Filed: 1927-07-18
Abstract: 274,512. Santa, L. July 16, 1926, [Convention date]. Road-traffic signals on vehicles. - Two direction indicating pointers 13, one at the front of the vehicle and the other at the rear, are actuated by a single handle 27 through a flexible connection 33 enclosed in a rigid casing 40. The wire 33 is secured at' 37 to a drum on the spindle of the handle 27, which is retained in any desired position by a spring- pressed ball engaging holes in a frame. At the ends, the wire is secured at 35 to drums 4 carrying the pointers 13 coiled restraining springs 8 being arranged within the drums. The pointers consist of arrow shaped boxes 13 having lustrous bases, and transparent covers 14 of celluloid &c. Contacts may be provided for a lamp in a holder 20. The rigid casing 40 is arranged in straight lengths and coupling devices, and means for taking the cable 33 round corners are described.
Patent GB-1472927-A (GB)
Title: Character recognition
IPC: G06V30/224
Filed: 1974-05-01
Abstract: 1472927 Character recognition systems SHARP KK 1 May 1974 19114/74 Heading G4R A character to be recognized is scanned by a column of sensors PT which is moved across the character field. Signals are derived representing the presence or absence of portions of a character (black) in horizontal zones α-# in each of a number of successive vertical slices of the field, as viewed during successive horizontal positions of the sensors. The signals occurring during particular vertical zones WP and WPa-WPd, each comprising at least two slices, are decoded to identify the character. The characters are in stylized form, e.g. embossed on a card, and are scanned by a column of phototransistors. The outputs of the columns feed ashift register connected to gates defining the zones α-#. For example the presence of black in any of the top three stages causes an output #, and the presence of black in each of the next three an output 8 at respective gates. These outputs pass to a diode matrix which develops one or more of signals A<SP>1</SP>-F<SP>1</SP>, each dependent upon the presence or absence of some-of the outputs α-# (Fig. 6, not shown). Signals A<SP>1</SP>-F<SP>1</SP> pass to logic circuitry (Figs. 7 and 8, not shown), which is also fed with timing signals corresponding to the zones WP and WPa-WPd. Provided that, in the respective zones, the relevant signals occur during a certain number of adjacent vertical slices of the field corresponding signals a-h are generated. For example, if signal F<SP>1</SP> is present during two adjacent slices during zone WPb signal h is generated. A further signal i is generated in respect of zones WPc and WPd. Signals a-i correspond to the waveforms indicated in Fig. 3, each waveform representing the black/white state of the horizontal zones α-# for vertical slices in the vertical zones indicated. The signals pass to a recognition unit which identifies the characters. For example, numeral 2 is identified if signals d, e and h are present and f and i absent, the state of a, b, c and g being immaterial. When the card has been scanned in one direction it is then scanned in the reverse direction. If the characters identified during the two scans are not identical an error signal is generated.
Patent GB-293863-A (GB)
Title: Process for the manufacture of 3-methyl-6-isopropylene-phenol
IPC: C07C37/52
Filed: 1928-07-03
Abstract: 293,863. Schering-Kahlbaum Akt.- Ges. July 14, 1927, [Convention date]. Addition to 273,686. 3-Methyl-6-isopropylenephenol is prepared by depolymerizing 4 : 4<1>-dimethyl-2 : 2'-dioxydiphenyldimethylmethane, which is obtained from the condensation of m-cresol and acetone by the process of Specification 308,741. To effect depolymerization, the compound is heated to about 250‹ C., or heated in the vapour state, or the vapour is passed over a surface catalyst. The product is recovered by fractional distillation, if desired under reduced pressure. An example is given. Specification 273,684 is referred to.
Patent GB-699047-A (GB)
Title: Improvements in the process for the manufacture of isopropyl benzene hydroperoxide
Inventor: ARMSTRONG GODFREY PAUL
IPC: C07C409/10
Filed: 1951-08-16
Abstract: Isopropyl benzene hydroperoxide is prepared by the oxidation of isopropyl benzene in the homogeneous liquid phase by molecular oxygen and in the presence of steam as in the parent Specification, the reaction temperature being maintained at 105-120 DEG  C. and the minimum amount of steam present in the gas space above the reaction mixture to avoid explosion risk being adjusted accordingly, viz. <TABS:0699047/IV (b)/1> This table shows the minimum amount of steam present, with respect to oxygen after deduction of the isopropyl benzene vapours.  In examples: (1) isopropyl benzene is oxidized to the hydroperoxide at 115 DEG  C. by passing in oxygen with continuous addition of dilute aqueous sodium carbonate; (2) the process of (1) is carried out at 105 DEG  C.  Specifications 630,286 and 29085/49 (as open to inspection under Sect. 91) also are referred to.
Patent GB-353207-A (GB)
Title: Improvements in guards or protectors for preventing injury by presses and like machines
IPC: F16P3/04
Filed: 1930-06-25
Abstract: 353,207. Controlling machinery guards. SCHULTE, O., Niederschlema, Saxony, Germany. June 25, 1930, No. 19352. Convention date, Sept. 12, 1929. [Class 80 (iv).] Guards for pressing, stamping, punching, perforating, riveting, and analogous machines are moved into the protective position and the press &c. subsequently started by a cyclicallyoperating control device, which may be operated by air, steam, or other medium under pressure or suction. A shield a, carried on spring-retracted pivoted arms c, is adapted to be raised into guarding position by a piston e in a cylinder f constantly supplied with compressed air from a pipe h through a small aperture g. When the guard has fully risen, a slide valve k<1> connected thereto closes an exhaust port u and connects the pipe h, through a passage i and the valve chamber k, to a pipe n conveying the air to a cylinder o containing a piston q adapted to depress the starting-pedal p. The cylinder o may also contain a retracting-spring for the piston q. Towards the end of the downstroke of the tool l, a rod r carried by the ram opens a ball valve s to exhaust the cylinder f, releasing the shield a and so allowing the cylinder o to exhaust through the port u. Rise of the guard may be delayed by providing a supplementary chamber z, which must be filled before the piston e is moved; if, however, the operator's hands still obstruct the guard, a hinged strip v on its upper edge is deflected and, by a stem w, a ball valve x is opened to exhaust air through a hose y, so checking the rise. In a modification, an air cushion, formed between the piston q and a further piston coacting with the lever p, is adapted to be independently exhausted, as by a further rod on the ram, in order to release the lever before the piston q has risen. The piston q is then raised by a spring. The machine can be immediately stopped by directly exhausting the cylinder o. The Specification as open to inspection under Sect. 91 (3) (a) comprises also other modifications, particularly applicable where means for stopping the machine at the end of a cycle is already provided, in which final movement of the guard may merely either unlatch the starting-lever or render it accessible for actuation. This subject-matter does not appear in the Specification as accepted.
Patent GB-1523376-A (GB)
Title: Razors and razor blade assemblies
IPC: B26B21/50
Filed: 1976-05-11
Abstract: 1523376 Razors GILLETTE CO 11 May 1976 [12 May 1975] 19358/76 Heading B4B A razor blade assembly comprises a blade means 14 clamped between a cap member 2 and a platform member 3, journal bearings 41, 45 on the platform to form a pivot axis 61 for pivotal movement of the assembly upon a razor handle 60, and cam means 46 on the platform for receiving a biassing force from a follower 66 extending from the handle, the cam means including two intersecting cam surfaces 50, 52 defining an internal angle and meeting at an apex 48 spaced from the pivot axis. The bearings 41, 45 are adapted to co-operate with journals 63, 65 on the handle 60, the degree of pivoting movement being limited by stops 29, 31 and a wall 36 of the platform. The follower is biased into engagement with the cam by means of a spring 70.
Patent GB-498606-A (GB)
Title: Improvements in connection with dust extracting plant
IPC: B24B55/06
Filed: 1937-07-13
Abstract: 498,606. Dust - collecting hoods. DAVIES. H. C. July 13, 1937, No. 19360. [Class 8 (ii)] A hood for collecting the dust made by a rotary tool is made in sections, the portion B being rigidly connected to the duct E whilst the sections A and D are hinged to the duct. These sections are also connected together by links H so that they move simultaneously when it is desired to adjust the hood to suit a rotary tool F of different diameter.
Patent GB-345899-A (GB)
Title: Improvements in or relating to radio direction finding apparatus
IPC: G01S1/02
Filed: 1930-06-25
Abstract: 345,899. Directive and duplex wireless signalling. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. June 25, 1930, No. 19389. Convention date, July 26,1929. [Class 40 (v).] An automatic bearing indicator comprises a continuously rotating directive aerial &c., and a synchronously rotating visual indicator comprising a plurality of lamps &c. energized by different transmitters through selective resonance circuits or relays. The enclosed crossed-loop aerial A contains goniometer coils in the housing H at its base, the moving element of which is rotated by a windmill C, which also drives a disc O through bevel gears N. The rotating disc O carries lamps r, g, b of different colours arranged radially and coacting with a fixed scale P, the lamps being energized by a battery M through slip-rings Q and the reeds k of vibration relays R, G, B tuned to the modulation frequencies of the three stations whose bearings are required. In this arrangement each lamp will show two positions of extinction at the two positions of minimum signals. In another arrangement, Fig. 3 (not shown), the vibrating reed contacts of the relays R, G, B are in parallel across the lamps, which light up at the minimum positions. For landing aircraft, the course may be indicated by two transmitters Sr, Sg, Fig. 5, controlling lamps r, g whose paths are shown as r<1>, g<1>, the two indications being kept on the same radius ; a third transmitter Sb may be arranged controlling lamp b so that the pilot commences to land when his " b " lamp makes a predetermined angle with the other two, the landing spot X being indicated when lamp b is in quadrature with lamps r, g. In a modified system, Fig. 6, four transmitters S1 .. S4 are arranged round the landing position X, and only three, which are automatically put into operation according to the direction of the wind, are utilized at any given time. In the arrangement described the wind is blowing from S1 to S2 and these control lamps r and g respectively while S3 is energized to control lamp b. In another case when the wind blows from S4 to S3, these control lanps rand g respectively and S1 controls lamp b. The number of transmitters may be increased, and different wave-lengths as well as modulation frequencies may be used in conjunction with different receivers connected to the same goniometer.
Patent GB-1035052-A (GB)
Title: Improvements in or relating to containers for the transportation of liquid in bulk
Inventor: MCKECHNIE CHARLES STANLEY
IPC: B65D90/06
Filed: 1963-05-16
Abstract: 1,035,052. Palletized containers; tapping vessels. ANDREWS OF AINTREE Ltd. May 15, 1964 [May 16, 1963], No. 19406/63. Headings B8D, B8H and B8T. A bulk transport container is formed with an inner tank 10, Fig. 7 (not shown), of stainless steel and an outer casing 17, Fig. 1 (not shown), of fibre - glass - reinforced plastics. The tank 10 has strengthening members 16 to which are bolted steel guide members 31 fitting in recesses 30 in the casing 17 and adapted to receive the prongs of a fork-lift truck. Inward ribs 18 on the casing 17 contact and support the tank 10, and projections 35 and depressions 36 of adjacent casings inter-engage for stacking. The form of the members 35, 36 may be reversed. Pivoted shackles 34 mounted on the members 16 project through the casing, which has a hinged cover in register with a manhole 11 in the tank 10. Duets 39 are provided to drain liquid from a recess in which the cover is situated. The man-hole 11 has an apertured cover 12 secured by bolts and provided with a filling tube 14 capped at 15. A sump 19 in the tank has a closable aperture 20, Fig. 9 (not shown), in line with an aperture in the casing. The aperture 20 is closed by a threaded plug 24 fitting within a sleeve 21 laterally apertured at 26. A key may be inserted through the tube 14 to turn the plug 24 and thereby allow liquid in the tank to be emptied through the apertures 26.
Patent GB-621899-A (GB)
Title: Improvements in or relating to a motion picture film cleaning device
IPC: G03D15/00
Filed: 1946-07-01
Abstract: 621,899. Cleaning films. STEVENS, A. H, (Mills Industries, Inc.). July 1. 1946, No 19573. [Class 98 (ii)] A motion-picture film-cleaning device comprises electrically operated control means which move wiper elements into and out of engagement with the film and ensure that cleaning liquid is only supplied to these elements when they are in their film-engaging position. As applied to the kinematograph projector of Fig. 1, wherein a film 22 to be cleaned passes from a spool 12, which is rotated by a belt 29 and powerdriven film sprocket 15, around guide rollers, through the usual film gate and then back to the spool 12, the cleaning device comprises pivoted wiper elements 31, 32 carrying absorbent pads 33, which are usually separated due to spring action, but are capable of engaging the film. Mounted on the projector is a tank 34, Figs. 1 and 3, for the cleaning fluid, e.g. carbon tetrachloride, which has handoperated valves 36 to regulate the flow of liquid on to the pads 33 via conduits 35. Mounted on a plate 43 inside the tank is a float 71, carried by a pivoted arm 72, to which is connected a push rod 75 having a head 76 for engagement with the movable member of a switch 78 mounted on the top plate of the tank. When the liquid in the tank has reached a predetermined low level, switch 78 opens and the cleaning operation is suspended. A rod 49 is guided in the tank'so that the point thereof may enter a perforation in the plate 43, and is pivoted to the armature 58 of a solenoid 59. When solenoid 59 is energized, rod 49 is raised and allows flow of liquid out of the tank. Adjacent the wipers 31, 32 is another solenoid 85 which when energized causes the rocker 87 on the armature thereof to move the wipers into their engaging position, The solenoids 59, 85 and the switch 78 are connected with another solenoid, a master relay and a power supply, the master relay being coin-controlled so that operation thereof in conjunction with the closure of a switch control will effect the film cleaning operation until the switch 78 opens due to the low liquid level in the tank, or the master relay is de-energized.
Patent GB-223979-A (GB)
Title: An improved safety device for lifts, pit cages and the like
IPC: B66B5/18
Filed: 1923-07-31
Abstract: 223,979. Waugh, J., Horsman, H., and Rae, J. W. July 31, 1923. Catch gear of mine-cage type. -The hoisting rope is connected to the piston rod c of a cylinder a which is in communication with a cylinder h containing a piston j having an extension adapted to engage a guide rope. The cylinders and connecting pipes are filled with glycerine or water. When the hoisting rope breaks, the spring d forces down the piston b and the consequent outward movement of the piston j causes the guide rope to be, gripped between the slipper and the extension k. The admission of liquid to the cylinder h is controlled by a valve p fixed on a rod q attached to the piston j. When the valve p has closed the passage s, liquid passes through the by-pass t controlled by the needle valve u, and the movement of the piston continues at reduced speed. Where channel guides are used, the extension k is modified to act on the flange and a braking cylinder is provided on each side of the guide.
Patent GB-534570-A (GB)
Title: Improvements in iron alloys containing manganese
IPC: C22C38/04
Filed: 1939-07-05
Abstract: 534,570. Alloys ; annealing. ABBEY, A. (Consolidated Mining & Smelting Co., of Canada, Ltd.). July 5, 1939, No. 19603. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 29, 1940]. Drawings to Specification. [Classes 72 and 82 (i)] Hardenable alloys having stainless properties and applicable for making cutlery, tools, dies, turbine blades, cooking utensils, machine parts, car and railway equipment, engine valves, electrodes, electric heating elements, and other articles, consist of 33-59 per cent. of iron and 25-66 per cent. of manganese of at least 99.5 per cent impurity, which may be electrolytic manganese, with or without up to 18 per cent. of chromium, and with or without small amounts of nickel, copper and titanium, for example 2 per cent. of nickel or 1-5 per cent. of titanium. The alloys may be hardened by quenching from a relatively high temperature for example 1100- 1200‹C., followed by reheating at a lower temperature for example 500-600‹C.
Patent GB-1311210-A (GB)
Title: Polyester filamentary structures
IPC: D06M11/155
Filed: 1970-04-23
Abstract: 1311210 Polyester filamentary structures E I DU PONT DE NEMOURS & CO 23 April 1970 [25 April 1969] 19620/70 Heading D1P A filamentary structure of polyethylene terephthalate filaments is coated with a durable surface of a degradation inhibitor comprising a compound of a metallic element having an atomic number 22-30 or 40-48 which compound has a P 2 <SP>140</SP> value, as herein defined, of at least 0.2 in an amount sufficient to provide 2-40 gram atoms of the metallic element per million grams of the filaments. The filamentary structure, in the form of a yarn or tyne cord, has filaments with a relative viscosity >40 and a tenacity >10 gram/denier (based on the denier at break). At concentration levels >40 gram atoms per million grams the metal salts chemically and mechanically interfere with the card-to-rubber adhesion but at concentration levels <2 g atoms per million grams the coatings do not provide adequate attack by amines. Examples of suitable salts are, chlorides of chromium, manganese, iron, cobalt, nickel, copper, zinc and ruthenium, the sulphates of manganese, iron, cobalt, nickel, copper and zinc, and the nitrates of chromium, iron, cobalt, zinc, silver and cadmium. Other suitable metallic compounds are Fe NH 4 (SO 4 )) 2 .1 2H 2 O, Fe 4 [Fe(CN) 6 ] 3 , Na 3 Co(NO 2 ) 6  and cupric acetate. The degradation inhibitor may be applied in a conventional finish for polyethylene terephthalate yarns as a solution or dispersion, ensuring that the dried coated surface has 2-40 gram atoms of metallic element per million grams of filaments. The dried coated structure may be coated with an adhesion for bonding polyester filaments to rubber so that # 60% by weight of the degradation inhibitor remains adherent to the structure, rubber is applied to the adhesive coated structure and the combined structure cured. The process can be applied to the production of elastomeric articles reinforced with drawn, high strength polyethylene terephthalate filaments.
Patent GB-853145-A (GB)
Title: Improvements in and relating to hand pumps
IPC: F04B9/14
Filed: 1957-06-21
Abstract: 853,145. Hand pumps. HAAG, H. June 21, 1957 [June 21, 1956], No. 19694/57. Class 102(1). A hand pump 1 for delivering liquids, such as oil, from a container 2 is inserted in the pouring aperture of the container and is provided with a support plate 9, adjacent the upper end of the pump barrel, having a stirrup 10 of curved cross-section at the lower end of which is disposed a foot plate 11. The foot plate 11 may be hinged to the stirrup 10 which may be adjustable in length, and a holding claw 12 may be provided to engage the bottom of the container 2. The support plate 9 may carry a vent pipe 13 with a sharply angled end 14 for pressing an opening into the cover 15 of the container. The pump described has an inlet valve 8, piston 3 and outlet valve 4, liquid being delivered through the hollow piston rod 5 and handle 6, closed at one end, to the delivery hose 7.